The Mandelbrot screensaver is distributed as a classic shareware application - the download is fully functional with no restrictions.
Since 1999 I have spent hundreds of hours working on the Mandelbrot screensaver - and countless additional hours watching new fractals paint on screen. I hope you have as much fun with the results of that hard work as I did creating the screensaver in the first place.
If you do enjoy the screensaver and would like to show your appreciation, please consider showing your support by purchasing an appreciation license.
Your support will encourage me to spend more time creating, improving and sharing additional software.